Churn.



PATENTED FEB. 13, 1906.

No. 812,592. I

W. L. POOL.

CHURN.

APPLICATION FILED JUNE 20, 1904.

UNITED STATES WILLIAM L. POOL, OF AZTEC,

TERRITORY OF NEW MEXICO.

CHURN.

Specification of Letters Patent.

Patented Feb. 13, 1906.

Application filed June 20, 1904. Serial No. 213,211.

To all whom, it may concern.-

Be it known that I, WILLIAM L. PooL, a citizen of the United States,residing at Aztec, in the county of San Juan and Territory of NewMexico, haveinvented certain new and useful Improvements in Churns, ofwhich the following is a specification.

This invention relates to churns; and my object is to produce a churn bywhich butter can be produced in a minimum of time and of that classwhich can be operated easily and in which the dasher has simultaneouslyrevolving and reciprocating movement in order that it may acteffectively on the entire body of the cream; and my object is to producea dasher which tends to revolve the cream in opposite directions at thesame time, so as to effect the most thorough and complete agitationpossible.

To these ends the invention consists in certain novel and peculiarfeatures of construc tion and. combinations of parts, as hereinafterdescribed and claimed; and in order that it may be fully understoodreference is to be had to the accompanying drawings, in which Figure 1is a central vertical section of a churn constructed in accordance withmy invention. Fig. 2 is a horizontal section taken on the line II II ofFig. 1. Fig. 3 is a section taken on the line III III of Fig. 1.

In the said drawings, 1 designates the body of the churn, the same beingpreferably of cylindrical form. 2 is the cover, adapted to fit down intothe body and of the type shown or of any other suitable or perferredconstruction. Said cover is provided with a central vertical passage 3and on its lower side, by preference, with a metallic plate 4, having asquare central hole 5 registering with the somewhat larger passage 3.Plate 4 is preferably secured to the cover by screws 6.

The dasher is constructed as follows: 7 and 8 designate horizontalbottom and top bars somewhat shorter than the interior diameter of thechurn-body and connected by vertical dash-arms 9, which are disposed atabout an angle of forty-five degrees, to bars 7 and 8, the arrangementbeing such that rotation of the dasher in the direction indicated by thearrow, Fig. 3, results in the outer faces 10 of said arms dashing thecream outwardly; Rotation in the opposite direction results in the innerfaces 11 of said arms tending to dash the cream inwardly.

12 and 13 designate horizontal bars shorter sides 16 of said-armstending to force the.

cream inwardly when rotated in the opposite direction. The proportion ofthe parts of the dasher is such that arms 9 and 14 describe concentriccircles when in operation.

17 is a metallic plate secured, as at 18 or otherwise, to the upper sideof bar 7 in order to provide a more reliableconnection therewith for thelower portion 19 of the stem of the dasher, the upper portion of saidstem being twisted and identified by number 20.

In practice the twist is preferably about one and one-half times to eachsix inches length of the stem; but of course I do not con fine myself tothese proportions. The stem 20 extends snugly through the hole 5 ofplate 4 and loosely through the hole 3' of the cover and terminates in adiametrically-reduced cylindrical stem 21, upon which is loosely mounteda handle 22, a suitable nut 23 being employed to retain the handle inposition.

In operation the handle 22 is grasped and reciprocated vertically, whichaction imparts similar movement to the dasher, the latter at the sametime being revolved rapidly because of the relation between the plate 4and the spiral or twisted stem portion, the rotation being in onedirection as the dasher rises and in the opposite direction as itdescends, as will be readily understood. As it moves vertically androtates in the direction indicated by the arrow the outer portion of thecream is forced outwardly against:the 5 walls of the churn-body by theoutwardlydisposed surfaces 10 of dash-arms 9, and'the inner portion ofthe cream is forced inwardly by the inner surfaces-16 of the dash-arms14. As the'vertical movement is reversed the rotation of the dasher isalso reversed, so that the inner surfaces 11 of arms 9 shall force theouter portion of the cream inwardly and the outer surfaces of arm 14shall force the inner portion of the cream outward, and therefore inopposition to the outer portion. In both the up and down movements itwill be obvious that the cream is most violently agitated and that byreason of the synchronous vertical and rotative movements of thechurndasher the casein of the cream Willbe broken and butter produced inthe minimum of time. In fact, I have produced butter in two minutes andforty-five seconds.

From the above description it will be apparent that I have produced achurn which embodies the features of advantage enumerated as desirablein the statement of invention, and while-I have illustrated anddescribed the preferred embodiment it will be apparent that it issusceptible of modifications in minor particulars without departing fromthe principle and scope or sacrificing any of the advantages.

Having thus described the invention, what I claim as new, and desire tosecure by Let .ters Patent, is-

ing in substantial parallelism at an angle to the path of rotationdifierent from the angular disposition of the other set of blades, thespace between each set of blades and the axis of rotation beingunobstructed.

In testimony whereof I affix my signature in the presence of twowitnesses.

WILLIAM L. POOL. Witnesses:

W. W. BAY, S. P. CAMERON.

